Chain

******    *****   *     *  *     *  *     *  *******  ******   
*     *  *     *  *     *  *     *  *   **      *     *     *  
*     *  *     *   *   *   *     *  * **        *     *     *  
******   *     *   *   *   *******  **          *     ******   
*        *   * *    * *    *     *  * **        *     *     *  
*        *    *     * *    *     *  *   **      *     *     *  
*         **** *     *     *     *  *     *     *     ******